Make sure you are not already connected to Merge. Xero only allows one active connection per tenant. If you have already connected an account, please go into your Xero account and disconnect it.

In the Merge Linking flow, select Accounting -> Xero. Click Continue and then Next Step to open the Xero connection window. Select which organization you want to connect and click Continue.

The window should close and you should be directed back to Merge Link with a success screen showing authorization to your Xero account!